206k views
1 vote
Which shows a difference of squares?

10y^2-4x^2
6y^2−x^2
8x^2−40x+25
64x^2-48x+9

1 Answer

6 votes

Answer:

The equations shows a difference of squares are:

10y²- 4x² $ 6y²- x²

Explanation:

the difference of two squares is a squared number subtracted from another squared number, it has the general from Ax² - By²

We will check the options to find which shows a difference of squares.

1) 10y²- 4x²

The expression is similar to the general form, so the equation represents a difference of squares.

It can be factored as (√10 y + 2x )( √10 y - 2x)

2) 6y²- x²

The expression is similar to the general form, so the equation represents a difference of squares.

It can be factored as (√6y + x )( √6y - x)

3) 8x²−40x+25

The expression is not similar to the general form, so the equation does not represent a difference of squares.

4) 64x²-48x+9

The expression is not similar to the general form, so the equation does not represent a difference of squares.

User Raham
by
6.0k points